1951
DOI: 10.1111/j.1744-7348.1951.tb07858.x
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Particle Size of Insecticidal Suspensions and Their Contact Toxicity Iv. Mechanisms of Action of Different‐sized Particles

Abstract: Two earlier papers showed that in tests of suspensions by dipping, large crystals of D D T could kill grain beetles just as efficiently as colloidal DDT. But with rotenone, colloidal particles were far more toxic than large crystals; this difference was partly in their speeds of action. A third paper showed that in contact action the relative toxicity of small particles is increased by cooling the beetles after treatment. In tests by injection into milkweed bugs, particle size seemed to have no effect on toxic… Show more

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Cited by 8 publications
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